نتایج جستجو برای: polyunsaturated fatty acid

تعداد نتایج: 802470  

Background and Objectives: Breast milk composition is affected by several factors such as maternal diet and body mass index. Milk fats include a major calorie content of the milk, which changes dramatically throughout the lactation. The aim of the present study was to assess breast milk fatty acid profile in overweight and obese mothers and its correlations with maternal body mass index. Mater...

ژورنال: زیست شناسی دریا 2019
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Since fish have large amounts of long chain polyunsaturated fatty acids, they are considered a good source of food. In this study, fatty acid content and proximate composition of Silver Pomfret fish (Pampus argenteus) were investigated during winter and summer. For this purpose, the samples were collected from Bandar Lenge of Persian Gulf in 2016 and brought to the laboratory. The moisture, fat...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی اصفهان - دانشکده منابع طبیعی 1387

زئوپلانکتون¬ها گروه بسیار مهمی از موجودات زنده بوده که پایه زنجیره غذایی را در اکوسیستم¬های آبی تشکیل می¬دهند. از بین آن¬ها کلادوسرها و کپه¬پودها نقش مهمی را در زنجیره غذایی آبها داشته و از طریق تغذیه روی انواع موجودات زنده آبزی، انرژی را از میکروالگ¬ها به سطوح بالای هرم غذایی انتقال می¬دهند. همچنین زئوپلانکتون¬ها منابع ارزشمندی از پروتئین¬ها، اسیدهای آمینه، لیپیدها، اسیدهای چرب، ویتامین¬ها و آ...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2000
F Beaudoin L V Michaelson S J Hey M J Lewis P R Shewry O Sayanova J A Napier

A Caenorhabditis elegans ORF encoding the presumptive condensing enzyme activity of a fatty acid elongase has been characterized functionally by heterologous expression in yeast. This ORF (F56H11. 4) shows low similarity to Saccharomyces cerevisiae genes involved in fatty acid elongation. The substrate specificity of the C. elegans enzyme indicated a preference for Delta(6)-desaturated C18 poly...

Journal: :پژوهش های علوم دامی ایران 0
سید جواد حسینی واشان نظر افضلی محمد ملکانه محمد علی ناصری علی رسانی

one-hundred-sixty-eight 28-wk-old hy-line layers (w-36) were used to evaluate the effect of different levels of linseed (ls) and safflower seed (ss) on antibody titter, blood and yolk cholesterol, yolk fatty acid content and the ratio of omega-6/ omega-3. hens were randomly assaigned in a compeletly randomised design each 3 replicates of 8 hens. they were fed diets contained 0, 4, 7 and 10% ls ...

Journal: :Journal of lipid research 2003
Maria Rodriguez Simone Funke Maria Fink Hans Demmelmair Marco Turini Gayle Crozier Berthold Koletzko

Most preterm infant formulas contain medium-chain triacylglycerols (MCT), but the effects of MCT on polyunsaturated fatty acid status and metabolism are controversial. Thus, we studied the effects of MCT on linoleic acid metabolism using stable isotopes. Enterally fed preterm infants were randomized to receive for 7 days 40% of fat as MCT (n = 10) or a formula without MCT (n = 9). At study day ...

Journal: :The American journal of psychiatry 2006
M Elizabeth Sublette Joseph R Hibbeln Hanga Galfalvy Maria A Oquendo J John Mann

OBJECTIVE Low levels of docosahexaenoic acid, a polyunsaturated fatty acid, and elevated ratios of omega-6/omega-3 fatty acids are associated with major depression and, possibly, suicidal behavior. Predicting risk of future suicidal behaviors by essential fatty acid status merits examination. METHOD Plasma polyunsaturated fatty acid levels in phospholipids were measured in 33 medication-free ...

Journal: :Circulation research 2007
Nicolas Blondeau Olivier Pétrault Stella Manta Valérie Giordanengo Pierre Gounon Régis Bordet Michel Lazdunski Catherine Heurteaux

Vessel occlusion is the most frequent cause for impairment of local blood flow within the brain resulting in neuronal damage and is a leading cause of disability and death worldwide. Polyunsaturated fatty acids and especially alpha-linolenic acid improve brain resistance against cerebral ischemia. The purpose of the present study was to evaluate the effects of polyunsaturated fatty acids and pa...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 1976
J Mertin R Hunt

Subcutaneous or oral administration of the polyunsaturated fatty acid linoleic acid prolongs survival of skin allografts in mice. Mice fed on a diet deficient in polyunsaturated fatty acids show a relative immunopotentiation, as indicated by accelerated skin allograft rejection and decreased incidence and rate of development of methylcholanthrene-induced tumors. These observations support the h...

Journal: :تحقیقات دامپزشکی 0
ناصر میدانی دانش آموخته دانشکده کشاورزی دانشگاه تربیت مدرس تهران شعبان رحیمی گروه پرورش و تولید طیور دانشکده کشاورزی، دانشگاه تربیت مدرس تهران علی اکبر قره داغی بخش ژنتیک و اصلاح نژاد دام موسسه تحقیقات علوم دامی کشور محمد امیر کریمی ترشیزی گروه پرورش و تولید طیور دانشکده کشاورزی، دانشگاه تربیت مدرس تهران

effects of n-3 or n-6 polyunsaturated fatty acids alone or in combination with vitamin e on male breeders’ fatty acid composition of spermatozoa, fertility and lipid peroxidation were studied. fish oil increased c22:6 n-3 and decreased c22:4 n-6 in the spermatozoa (p

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